AppleInsider is reporting that Apple might make its slimmest notebook even lighter with the use of carbon fiber. Apparently, Apple would like to get the weight of the MacBook Air down below 3 pounds.

And what is carbon fiber exactly?

“Carbon fiber is an extremely lightweight material comprised of very thin fibers about 0.005–0.010 millimeters in diameter and composed mostly of carbon atoms. The atoms bond together in microscopic crystals that are aligned parallel to the long axis of the fiber and can thus be used to form exceptionally strong composites without requiring more material.

The high strength-to-weight ratio of carbon fiber has made it a popular choice for the aerospace, sporting, and racing industries, where it’s used for aircraft parts, bicycle frames, and performance car bodies. More recently, however, its application has spilled into the computing industry, with vendors such as Sony and HP’s Voodoo PC brand all using it to construct lightweight notebook enclosures.”